Molecular structure of (2S,4R)-1-[(9H-fluoren-9-ylmethoxy)carbonyl]-4-({[2-({[(2-methyl-2-propanyl)oxy]carbonyl}amino)ethyl]carbamoyl}oxy)pyrrolidine-2-carboxylic acid (CAS 187223-15-0)

(2S,4R)-1-[(9H-fluoren-9-ylmethoxy)carbonyl]-4-({[2-({[(2-methyl-2-propanyl)oxy]carbonyl}amino)ethyl]carbamoyl}oxy)pyrrolidine-2-carboxylic acid

Also known as: Fmoc-Hyp(Bom)-OH, Fmoc-L-Hyp(Bom)-OH, FMOC-L-HYP(BOM)-OH, 1,2-Pyrrolidinedicarboxylic acid, 4-[[[[2-[[(1,1-dimethylethoxy)carbonyl]amino]ethyl]amino]carbonyl]oxy]-, 1-(9H-fluoren-9-ylmethyl) ester, (2S,4R)-, N-alpha-(9-fluorenylmethyloxycarbonyl)-L-Hyp(Boc-aminoethylcarbamoyl)

(2S,4R)-1-[(9H-fluoren-9-ylmethoxy)carbonyl]-4-({[2-({[(2-methyl-2-propanyl)oxy]carbonyl}amino)ethyl]carbamoyl}oxy)pyrrolidine-2-carboxylic acid (CAS 187223-15-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C28H33N3O8 and a molecular weight of 539.577 g/mol. Key properties include a boiling point of 749.0±60.0 °C at 760 mmHg, a density of 1.35±0.1 g/cm3 and a flash point of 406.8±32.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 187223-15-0
Jingsj CID: J-1033973-8
Molecular Formula: C₂₈H₃₃N₃O₈
Molecular Weight: 539.577 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	749.0±60.0 °C at 760 mmHg
Density	1.35±0.1 g/cm3
Flash Point	406.8±32.9 °C
Exact Mass	539.226746
PSA	143.50000
LogP	3.54
Vapor Pressure	0.0±2.6 mmHg at 25°C
Refractive Index	1.620
Additional Property	Insuluble (1.5E-3 g/L) (25 ºC)

Activity & Biological Data

Target	Cleavable
Additional Information	[1]. Beck A, et al. Strategies and challenges for the next generation of antibody-drug conjugates. Nat Rev Drug Discov. 2017;16(5):315-337. [2]. Nalawansha DA, et al. PROTACs: An Emerging Therapeutic Modality in Precision Medicine. Cell Chem Biol. 2020;27(8):998-985.

Frequently Asked Questions

What is the CAS number of (2S,4R)-1-[(9H-fluoren-9-ylmethoxy)carbonyl]-4-({[2-({[(2-methyl-2-propanyl)oxy]carbonyl}amino)ethyl]carbamoyl}oxy)pyrrolidine-2-carboxylic acid?

The CAS number of (2S,4R)-1-[(9H-fluoren-9-ylmethoxy)carbonyl]-4-({[2-({[(2-methyl-2-propanyl)oxy]carbonyl}amino)ethyl]carbamoyl}oxy)pyrrolidine-2-carboxylic acid is 187223-15-0.

What are the molecular formula and molecular weight of (2S,4R)-1-[(9H-fluoren-9-ylmethoxy)carbonyl]-4-({[2-({[(2-methyl-2-propanyl)oxy]carbonyl}amino)ethyl]carbamoyl}oxy)pyrrolidine-2-carboxylic acid?

(2S,4R)-1-[(9H-fluoren-9-ylmethoxy)carbonyl]-4-({[2-({[(2-methyl-2-propanyl)oxy]carbonyl}amino)ethyl]carbamoyl}oxy)pyrrolidine-2-carboxylic acid has molecular formula C28H33N3O8 and molecular weight 539.577 g/mol.

What are the upstream and downstream products of (2S,4R)-1-[(9H-fluoren-9-ylmethoxy)carbonyl]-4-({[2-({[(2-methyl-2-propanyl)oxy]carbonyl}amino)ethyl]carbamoyl}oxy)pyrrolidine-2-carboxylic acid?

For (2S,4R)-1-[(9H-fluoren-9-ylmethoxy)carbonyl]-4-({[2-({[(2-methyl-2-propanyl)oxy]carbonyl}amino)ethyl]carbamoyl}oxy)pyrrolidine-2-carboxylic acid, Upstream Products: Fmoc-OSu, methyl (2S,4R)-4-hydroxypyrrolidine-2-carboxylate, N-Fmoc-trans-4-hydroxy-L-proline methyl ester.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "(2S,4R)-1-[(9H-fluoren-9-ylmethoxy)carbonyl]-4-({[2-({[(2-methyl-2-propanyl)oxy]carbonyl}amino)ethyl]carbamoyl}oxy)pyrrolidine-2-carboxylic acid (CAS 187223-15-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1033973-8 (accessed 2026-11-09).

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